When we visit the site there will be records to stay, this is the log file, log information (source IP, access time and other information)
1. The configuration of the log file already exists in the configuration file of the virtual host, we just need to open it to
Vi/usr/local/apache2/conf/extra/httpd-vhosts.conf
There is a common in the log that represents the format of the log and modifies it to combined
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2. You can modify the name of the log
Modify to Test.com-error_log
Test.com-access_log
Default log path in /usr/local/apache2/logs/
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3. Reboot and Reload after Setup
Apachectl-t
Apachectl Graceful
4. Refresh the page
Go to log directory to see if a log file was generated
CD /usr/local/apache2/logs/
LS View file
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Cat Test.com-access_log can view access log messages
Log format:logformat "%h%l%u%t%t \"%r\ "%>s%b \"%{referer}i\ "\"%{user-agent}i\ ""
%H Remote Host
%l Remote Login Name
%u Remote user name
%t time, in normal log time format
%T the time, in seconds, that the request took to complete processing
%r the first line of the request, action
Source IP back two are not present, all with--representations (L:u: Represents the user)
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5. View the capacity of the log file
Wc-l Test.com-access_log
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What should I do to sort the format by time?
Add some content to the virtual host log configuration file
Customlog "| /usr/local/apache2/bin/rotatelogs-l/usr/local/apache2/logs/test.com-access_%Y%m%d_log 86400 "combined
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Refresh the Web page to generate a log with a date
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Modify the date, and then refresh the page to see if there is a build log
Date-s "2016-11-21 15:55:20"
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Refresh the Web page and generate a new log file
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Apache Split Log